A shape-protecting fine-blanking die for refrigerator stamping parts

Abstract

The invention discloses a shape-keeping fine stamping die for a stamped part of a refrigerator. The shape-keeping fine stamping die for the stamped part of the refrigerator comprises an upper die plate and a lower die plate, wherein the upper die plate is positioned above the lower die plate; the bottom end of the upper die plate is connected with a stamping device; the stamping device comprises a first connecting column; a first groove is formed in the bottom end of the first connecting column; a second connecting column and a first spring are arranged in the first groove; the top end of the first spring is fixed at the top end of the first groove; and the bottom end of the first spring is connected with the second connecting column. The shape-keeping fine stamping die for the stamped part of the refrigerator comprises the stamping device; the stamping device is connected with an oil inlet tube; by matching effects of the first connecting column, the first spring, a third groove, limiting blocks, first through holes, the second connecting column, a second spring and a moving block, hydraulic oil in the first groove can be sprayed out during stamping every time, and lubricates the stamped part to make a preparation for next stamping, friction between contact surfaces is reduced, adhesion between metals is avoided, abrasion is reduced, and waste of the lubricating oil is also reduced.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to a shape-protecting fine-blanking die for refrigerator stamping parts. Background technique [0002] Stamping die is a device used for pressure processing of materials. Its working principle is generally to drive the opening and closing of the upper die and the lower die under the action of stamping to cut, punch, stretch, etc. the raw materials between them. Set the shape to form stamping parts. According to the working principle of the press, it can be divided into mechanical press and hydraulic press. The mechanical press uses the electric motor to drive the slider to complete the stamping process, and the hydraulic press uses the hydraulic principle to drive the hydraulic cylinder to reciprocate to complete the stamping process. The mechanical press has fast reciprocating frequency, high speed and high efficiency, but the force generated is small. It is generally used ...

AI Technical Summary

Problems solved by technology

It is usually composed of a combination of upper and lower matching punch and die. The punch and die are fixed by the upper backing plate, and the upper backing plate and the upper template are fixed. In the original refrigerator, many stamping parts are connected and matched with each other. In the fine blanking die, lubrication is required. Oil can reduce friction between contact surfaces, avoid adhesion between metals, and reduce wear. If you have been using the oil pipe to spray oil, it will be a waste of lubricating oil. If you add it manually every time, it will take time and effort, and the stamping efficiency will be low. Therefore, we propose a A shape-protecting fine-blanking die for refrigerator stamping parts to solve the above problems

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